April 17

From The Met Wiki

1964: The Pirates defeat the Mets, 4-3, in the first game ever at Shea Stadium.

1966: The Mets defeat the Atlanta Braves, 5-4, at Shea Stadium. A bases-loaded walk to Ron Swoboda drives home the winning run. The win gives the Mets a 2-1 record on the season, putting them over .500 for the first time ever.

1968: Jerry Koosman shuts out the Giants, 3-0, at Shea Stadium. It is the Mets first win ever in a home opener.

1976: The Mets pound out 21 hits in a 17-1 win over the Pirates at Pittsburgh.

1989: The Mets defeat the Phillies, 5-2, at Shea Stadium. Darryl Strawberry, Kevin McReynolds and Keith Hernandez hit three consecutive home runs in the third inning.

1994: Jeff Kent hits two home runs in the Mets' 4-2 win over the Astros at Shea Stadium.

2003: Jae Seo records his first major league win in a 7-2 Mets victory over the Pirates at Pittsburgh.

2007: Moises Alou hits two home runs in the Mets' 8-1 win at Philadelphia.

2008: The Mets defeat the Nationals, 3-2, in 14 innings at Shea Stadium.

2009: Gary Sheffield hits his 500th career home run (his first hit as a Met) at Citi Field to tie the game. The Mets go on to defeat the Milwaukee Brewers, 6-5.

2010: The Mets win, 2-1, in 20 innings over the St. Louis Cardinals. It is the longest game won by the Mets in their history and the longest major league game in two years.